My windshield leaks in one spot over by the A pillar. Since leaky windshields are common in older M-B's what fixes them? Real cheap would be to squeeze silicone into the gasket local to the leak but I doubt it would be sufficient. The repair shop I visit said that sometimes glass repair shops will pour sealant into a leak. Anyone had success with that approach? Lastly there's reseating the entire windshield but I've heard that's troublesome too.

I understand that the acetic acid in many silicon compounds can be real hard on cars sheet metal. There is a substance that yacht owners use called "Capt. Tooley's Creeping Crack Cure". It is a thinner-than-water liquid polymer that flows into cracks and sets up as a waterproof plastic seal, and is used for a variety of applications besides boats - I have taken care of major leaks in a fountain and in a window sill with this stuff. If you don't have a marine supply location nearby, it is available through http://www.improvementscatalog.com .

I have a auto glass company to replace the rear window seal before, the total job was $75.00 labor, and $40 seal for the 115 body. As with any auto glass service, he came to my home on the installation.

I applied some Capt Tooley's ($11) to the leaking area and it no longer leaks! I also cleaned all my drains and checked behind the battery (in very good condition). This website alone is justification for the world wide web. Thanks for the advice.

For others with the same problem: The gasket on my car is pulled away from the windshield slightly along its lower edge. I'm filling in this volume with Capt Tooleys so that in winter freezing water won't open up a new leak path. It will take a while though because Tooleys is extremely thin and can flow downhill into the corner of the windshield and further if applied in quantity. So I'm filling the crack slowly. The first application did cure the leak.